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- Title
Ballistic Efficacy of Carbide Free High Strength Nano-Structured Bainitic Armour Steels.
- Authors
Mishra, Bidyapati; Sukumar, G.; Senthil, P. P.; Reddy, P. R. S.; Singh, B. B.; Ramakrishna, B.; Kumar, K. Siva; Madhu, V.
- Abstract
Carbide free nano-structured bainitic steels typically have strength more than 2.0 GPa and impact toughness of 7 J or less. Most of this class of steels have sluggish kinetics and takes 16-72 h for complete bainitic transformation. The present work discusses key perspectives in developing carbide free nano-structured bainitic steel having strength more than 2.0 GPa and toughness more than 15 J. Further, ballistic evaluation of newly developed carbide free nano-structured bainitic steels having strength more than 2.0 GPa and high toughness of 20 J was carried out to understand the adaptability of these steels in combat vehicle applications. A comparison is made between newly developed high strength and tough carbide free nano-structured bainitic steels with typical martensite based ARMOX 500 class of armour steels. The developed nano-structured bainite showed ballistic performance much superior to ARMOX 500 steel. Monolithic plates of bainite provide complete protection against 7.62 AP projectiles at an areal density of 120 kgm-2. The ballistic efficiency of monolithic plates was further enhanced by using perforated geometrical configurations.
- Subjects
BAINITIC steel; CARBIDES; ARMORED military vehicles; MARTENSITE; STEEL
- Publication
Defence Science Journal, 2023, Vol 73, Issue 2, p131
- ISSN
0011-748X
- Publication type
Article
- DOI
10.14429/dsj.73.18634